Reinforcement Coupler
Reinforcement Coupler
Rebar couplers are used for joining rebars with full tension capacity. The ends of bars to be joined are provided with Parallel threads, and the bars are joined using a coupler sleeve that transfers the force on the rebar across the connection.
Why coupler is used in reinforcement?
The coupler in reinforcement is used since it is economical and cost efficient unlike the lapping system, where some part of the bar is wasted due to lapping. The rebar coupler is particularly cost efficient for large diameter bars in the big projects of construction and construction of skyscrapers.
Rebar couplers are used for joining rebars with full tension capacity. The ends of bars to be joined are provided with Parallel threads, and the bars are joined using a coupler sleeve that transfers the force on the rebar across the connection.
Why coupler is used in reinforcement?
The coupler in reinforcement is used since it is economical and cost efficient unlike the lapping system, where some part of the bar is wasted due to lapping. The rebar coupler is particularly cost efficient for large diameter bars in the big projects of construction and construction of skyscrapers.
Main Advantages Of Coupler
- 1.Rebar Coupler eliminate tedious lap calculations.
- 2.Rebar Coupler are fast and easy to install and requires no specialized skilled labour.
- 3.Rebar couplers are cost effective by reducing labour costs and accelerating job schedules.
- 4.Dowel bar substitutes reduce labour on site, formwork costs and increase job site safety
Codes for reinforcement couplers?
This standard covers the requirements and tests applicable to reinforcement couplers to be used in reinforced concrete constructions for mechanical splicing of bars conforming to:
- IS 16172
- IS 1786
- Eurocode-2
- BS 8110
- DN 1045
- ACI 318
- IBC
- ASME Sec III Div-2
Installation Of Coupler
The system contains one Coupler and two reinforcing bars with threads. The bar is typically supplied with the coupler already installed. In this case, begin
Screw the coupler to the rear of the thread on the fixed bar and lock tight. The bar end should be central within the coupler.
Position and rotate the continuation bar in the coupler
Tighten the joint on the continuation bar. After tightening there should be no more than 2-4mm of thread exposed, depending on the diameter of the rebar and type of threading.
Test results
Coupler Strength
